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Finding the Fourth Proportional to 1,254,917.23, 1,731,785.75 and 681,957.40

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Solution

The fourth proportional to 1,254,917.23, 1,731,785.75 and 681,957.40 is: 941,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254,917.23 : 1,731,785.75 = 681,957.40 : x
  2. Step 2: Convert to fraction form
    1,254,917.23/1,731,785.75 = 681,957.40/x
  3. Step 3: Cross multiply
    1,254,917.23x = 1,731,785.75 × 681,957.40
  4. Step 4: Simplify right side
    1,254,917.23x = 1,181,004,108,444.88
  5. Step 5: Solve for x
    x = 1,181,004,108,444.88/1,254,917.23
  6. Step 6: Final answer
    x = 941,101.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.